Possible I’m pregnant?

Cheresh

So I’ve been having unprotected sex several times throughout my fertile window and my cycle is due Sunday. Yesterday out of no where I was getting minor cramps in my stomach which isn’t normal for me to cramp a week before my period & this morning I was nauseous (didn’t throw up) & had some more minor cramps today. What y’all think ?

P.S I have been having some headaches off & on . & I ovulated On the 27th